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प्रश्न
Convert into mole.
20 g of water
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उत्तर
18 g of water = 1 mole
Then, 20 g of water = 20/18 mole = 1.11 moles (approx)
संबंधित प्रश्न
Which has more number of atoms, 100 grams of sodium or 100 grams of iron (given, atomic mass of Na = 23 u, Fe = 56 u)?
Calculate the number of moles in 12g of oxygen gas.
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Consider the following reaction and based on the reaction answer the questions that follow :
\[\ce{(NH4)2Cr2O7 ->[heat] N2(g) + 4H2O(g) + Cr2O3}\]
Calculate :
(i) The quantity in moles of (NH4)2Cr2O7 if 63 gm of (NH4)2Cr2O7 is heated.
(ii) The quantity in moles of nitrogen formed.
(iii) The volume in litres or dm3 of N2evolved at STP.
(iv) The mass in grams of Cr2O3 formed at the same time
[Atomic masses : H = 1, Cr=52, N=14]
Define the term:
Mole
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CaCO3
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Calculate the number of atoms in the following:
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Which of the following weighs the least?
